-### Version 2.00.3
-Wed Jan 29 09:13:44 EST 200 - Atul Mukker <atulm@lsil.com>
-i. Change the handshake in ISR while acknowledging interrupts. Write the
- valid interrupt pattern 0x10001234 as soon as it is read from the
- outdoor register. In existing driver and on certain platform, invalid
- command ids were being returned.
+Release Date : Fri May 19 09:31:45 EST 2006 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.9 (scsi module), 2.20.2.6 (cmm module)
+Older Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
- Also, do not wait on status be become 0xFF, since FW can return this
- status in certain circumstances.
+1. Fixed a bug in megaraid_init_mbox().
+ Customer reported "garbage in file on x86_64 platform".
+ Root Cause: the driver registered controllers as 64-bit DMA capable
+ for those which are not support it.
+ Fix: Made change in the function inserting identification machanism
+ identifying 64-bit DMA capable controllers.
- Initialize the numstatus field of mailbox to 0xFF so that we can wait
- on this wait in next interrupt. Firmware does not change its value
- unless there are some status to be posted
+ > -----Original Message-----
+ > From: Vasily Averin [mailto:vvs@sw.ru]
+ > Sent: Thursday, May 04, 2006 2:49 PM
+ > To: linux-scsi@vger.kernel.org; Kolli, Neela; Mukker, Atul;
+ > Ju, Seokmann; Bagalkote, Sreenivas;
+ > James.Bottomley@SteelEye.com; devel@openvz.org
+ > Subject: megaraid_mbox: garbage in file
+ >
+ > Hello all,
+ >
+ > I've investigated customers claim on the unstable work of
+ > their node and found a
+ > strange effect: reading from some files leads to the
+ > "attempt to access beyond end of device" messages.
+ >
+ > I've checked filesystem, memory on the node, motherboard BIOS
+ > version, but it
+ > does not help and issue still has been reproduced by simple
+ > file reading.
+ >
+ > Reproducer is simple:
+ >
+ > echo 0xffffffff >/proc/sys/dev/scsi/logging_level ;
+ > cat /vz/private/101/root/etc/ld.so.cache >/tmp/ttt ;
+ > echo 0 >/proc/sys/dev/scsi/logging
+ >
+ > It leads to the following messages in dmesg
+ >
+ > sd_init_command: disk=sda, block=871769260, count=26
+ > sda : block=871769260
+ > sda : reading 26/26 512 byte blocks.
+ > scsi_add_timer: scmd: f79ed980, time: 7500, (c02b1420)
+ > sd 0:1:0:0: send 0xf79ed980 sd 0:1:0:0:
+ > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
+ > buffer = 0xf7cfb540, bufflen = 13312, done = 0xc0366b40,
+ > queuecommand 0xc0344010
+ > leaving scsi_dispatch_cmnd()
+ > scsi_delete_timer: scmd: f79ed980, rtn: 1
+ > sd 0:1:0:0: done 0xf79ed980 SUCCESS 0 sd 0:1:0:0:
+ > command: Read (10): 28 00 33 f6 24 ac 00 00 1a 00
+ > scsi host busy 1 failed 0
+ > sd 0:1:0:0: Notifying upper driver of completion (result 0)
+ > sd_rw_intr: sda: res=0x0
+ > 26 sectors total, 13312 bytes done.
+ > use_sg is 4
+ > attempt to access beyond end of device
+ > sda6: rw=0, want=1044134458, limit=951401367
+ > Buffer I/O error on device sda6, logical block 522067228
+ > attempt to access beyond end of device
-ii. Specify the logical drive number while issuing the RESERVATION_STATUS
+2. When INQUIRY with EVPD bit set issued to the MegaRAID controller,
+ system memory gets corrupted.
+ Root Cause: MegaRAID F/W handle the INQUIRY with EVPD bit set
+ incorrectly.
+ Fix: MegaRAID F/W has fixed the problem and being process of release,
+ soon. Meanwhile, driver will filter out the request.
-iii. Reduce the default mailbox busy wait time from 300us to 10us. This is
- done to avaoid a possible deadlock in FW because of longer bust waits.
+3. One of member in the data structure of the driver leads unaligne
+ issue on 64-bit platform.
+ Customer reporeted "kernel unaligned access addrss" issue when
+ application communicates with MegaRAID HBA driver.
+ Root Cause: in uioc_t structure, one of member had misaligned and it
+ led system to display the error message.
+ Fix: A patch submitted to community from following folk.
-iv. The max outstanding commands are reduced to 126 because that't the
- safest value on all FW.
+ > -----Original Message-----
+ > From: linux-scsi-owner@vger.kernel.org
+ > [mailto:linux-scsi-owner@vger.kernel.org] On Behalf Of Sakurai Hiroomi
+ > Sent: Wednesday, July 12, 2006 4:20 AM
+ > To: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org
+ > Subject: Re: Help: strange messages from kernel on IA64 platform
+ >
+ > Hi,
+ >
+ > I saw same message.
+ >
+ > When GAM(Global Array Manager) is started, The following
+ > message output.
+ > kernel: kernel unaligned access to 0xe0000001fe1080d4,
+ > ip=0xa000000200053371
+ >
+ > The uioc structure used by ioctl is defined by packed,
+ > the allignment of each member are disturbed.
+ > In a 64 bit structure, the allignment of member doesn't fit 64 bit
+ > boundary. this causes this messages.
+ > In a 32 bit structure, we don't see the message because the allinment
+ > of member fit 32 bit boundary even if packed is specified.
+ >
+ > patch
+ > I Add 32 bit dummy member to fit 64 bit boundary. I tested.
+ > We confirmed this patch fix the problem by IA64 server.
+ >
+ > **************************************************************
+ > ****************
+ > --- linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h.orig
+ > 2006-04-03 17:13:03.000000000 +0900
+ > +++ linux-2.6.9/drivers/scsi/megaraid/megaraid_ioctl.h
+ > 2006-04-03 17:14:09.000000000 +0900
+ > @@ -132,6 +132,10 @@
+ > /* Driver Data: */
+ > void __user * user_data;
+ > uint32_t user_data_len;
+ > +
+ > + /* 64bit alignment */
+ > + uint32_t pad_0xBC;
+ > +
+ > mraid_passthru_t __user *user_pthru;
+ >
+ > mraid_passthru_t *pthru32;
+ > **************************************************************
+ > ****************
-v. Number of sectors per IO are reduced to 128 (64kb), becuase FW needs
- resources in special circumstances like check consistency, rebuilds
- etc.
+Release Date : Mon Apr 11 12:27:22 EST 2006 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.8 (scsi module), 2.20.2.6 (cmm module)
+Older Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module)
-vi. max_commands is no longer a module parameter because of iv.
+1. Fixed a bug in megaraid_reset_handler().
+ Customer reported "Unable to handle kernel NULL pointer dereference
+ at virtual address 00000000" when system goes to reset condition
+ for some reason. It happened randomly.
+ Root Cause: in the megaraid_reset_handler(), there is possibility not
+ returning pending packets in the pend_list if there are multiple
+ pending packets.
+ Fix: Made the change in the driver so that it will return all packets
+ in the pend_list.
-### Version: 2.00.2
-i. Intermediate release with kernel specific code
+2. Added change request.
+ As found in the following URL, rmb() only didn't help the
+ problem. I had to increase the loop counter to 0xFFFFFF. (6 F's)
+ http://marc.theaimsgroup.com/?l=linux-scsi&m=110971060502497&w=2
+ I attached a patch for your reference, too.
+ Could you check and get this fix in your driver?
-### Version: 2.00.1i
-Wed Dec 4 14:34:51 EST 2002 - Atul Mukker <atulm@lsil.com>
-i. Making the older IO based controllers to work with this driver
+ Best Regards,
+ Jun'ichi Nomura
+Release Date : Fri Nov 11 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.7 (scsi module), 2.20.2.6 (cmm module)
+Older Version : 2.20.4.6 (scsi module), 2.20.2.6 (cmm module)
-### Version 2.00.1
-Fri Nov 15 10:59:44 EST 2002 - Atul Mukker <atulm@lsil.com>
-i. Release host lock before issuing internal command to reset
- reservations in megaraid_reset() and reacquire after internal command
- is completed.
+1. Sorted out PCI IDs to remove megaraid support overlaps.
+ Based on the patch from Daniel, sorted out PCI IDs along with
+ charactor node name change from 'megadev' to 'megadev_legacy' to avoid
+ conflict.
+ ---
+ Hopefully we'll be getting the build restriction zapped much sooner,
+ but we should also be thinking about totally removing the hardware
+ support overlap in the megaraid drivers.
+
+ This patch pencils in a date of Feb 06 for this, and performs some
+ printk abuse in hope that existing legacy users might pick up on what's
+ going on.
+
+ Signed-off-by: Daniel Drake <dsd@gentoo.org>
+ ---
+
+2. Fixed a issue: megaraid always fails to reset handler.
+ ---
+ I found that the megaraid driver always fails to reset the
+ adapter with the following message:
+ megaraid: resetting the host...
+ megaraid mbox: reset sequence completed successfully
+ megaraid: fast sync command timed out
+ megaraid: reservation reset failed
+ when the "Cluster mode" of the adapter BIOS is enabled.
+ So, whenever the reset occurs, the adapter goes to
+ offline and just become unavailable.
+
+ Jun'ichi Nomura [mailto:jnomura@mtc.biglobe.ne.jp]
+ ---
+
+Release Date : Mon Mar 07 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.6 (scsi module), 2.20.2.6 (cmm module)
+Older Version : 2.20.4.5 (scsi module), 2.20.2.5 (cmm module)
+
+1. Added IOCTL backward compatibility.
+ Convert megaraid_mm driver to new compat_ioctl entry points.
+ I don't have easy access to hardware, so only compile tested.
+ - Signed-off-by:Andi Kleen <ak@muc.de>
+
+2. megaraid_mbox fix: wrong order of arguments in memset()
+ That, BTW, shows why cross-builds are useful-the only indication of
+ problem had been a new warning showing up in sparse output on alpha
+ build (number of exceeding 256 got truncated).
+ - Signed-off-by: Al Viro
+ <viro@parcelfarce.linux.theplanet.co.uk>
+
+3. Convert pci_module_init to pci_register_driver
+ Convert from pci_module_init to pci_register_driver
+ (from:http://kerneljanitors.org/TODO)
+ - Signed-off-by: Domen Puncer <domen@coderock.org>
+
+4. Use the pre defined DMA mask constants from dma-mapping.h
+ Use the DMA_{64,32}BIT_MASK constants from dma-mapping.h when calling
+ pci_set_dma_mask() or pci_set_consistend_dma_mask(). See
+ http://marc.theaimsgroup.com/?t=108001993000001&r=1&w=2 for more
+ details.
+ Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
+ Signed-off-by: Domen Puncer <domen@coderock.org>
+
+5. Remove SSID checking for Dobson, Lindsay, and Verde based products.
+ Checking the SSVID/SSID for controllers which have Dobson, Lindsay,
+ and Verde is unnecessary because device ID has been assigned by LSI
+ and it is unique value. So, all controllers with these IOPs have to be
+ supported by the driver regardless SSVID/SSID.
+
+6. Date Thu, 27 Jan 2005 04:31:09 +0100
+ From Herbert Poetzl <>
+ Subject RFC: assert_spin_locked() for 2.6
+
+ Greetings!
+
+ overcautious programming will kill your kernel ;)
+ ever thought about checking a spin_lock or even
+ asserting that it must be held (maybe just for
+ spinlock debugging?) ...
+
+ there are several checks present in the kernel
+ where somebody does a variation on the following:
+
+ BUG_ON(!spin_is_locked(&some_lock));
+
+ so what's wrong about that? nothing, unless you
+ compile the code with CONFIG_DEBUG_SPINLOCK but
+ without CONFIG_SMP ... in which case the BUG()
+ will kill your kernel ...
+
+ maybe it's not advised to make such assertions,
+ but here is a solution which works for me ...
+ (compile tested for sh, x86_64 and x86, boot/run
+ tested for x86 only)
+
+ best,
+ Herbert
+
+ - Herbert Poetzl <herbert@13thfloor.at>, Thu, 27 Jan 2005
+
+Release Date : Thu Feb 03 12:27:22 EST 2005 - Seokmann Ju <sju@lsil.com>
+Current Version : 2.20.4.5 (scsi module), 2.20.2.5 (cmm module)
+Older Version : 2.20.4.4 (scsi module), 2.20.2.4 (cmm module)
+
+1. Modified name of two attributes in scsi_host_template.
+ On Wed, 2005-02-02 at 10:56 -0500, Ju, Seokmann wrote:
+ > + .sdev_attrs = megaraid_device_attrs,
+ > + .shost_attrs = megaraid_class_device_attrs,
+
+ These are, perhaps, slightly confusing names.
+ The terms device and class_device have well defined meanings in the
+ generic device model, neither of which is what you mean here.
+ Why not simply megaraid_sdev_attrs and megaraid_shost_attrs?
+
+ Other than this, it looks fine to me too.
+
+Release Date : Thu Jan 27 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.4.4 (scsi module), 2.20.2.5 (cmm module)
+Older Version : 2.20.4.3 (scsi module), 2.20.2.4 (cmm module)
+
+1. Bump up the version of scsi module due to its conflict.
+
+Release Date : Thu Jan 21 00:01:03 EST 2005 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.4.3 (scsi module), 2.20.2.5 (cmm module)
+Older Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
+
+1. Remove driver ioctl for logical drive to scsi address translation and
+ replace with the sysfs attribute. To remove drives and change
+ capacity, application shall now use the device attribute to get the
+ logical drive number for a scsi device. For adding newly created
+ logical drives, class device attribute would be required to uniquely
+ identify each controller.
+ - Atul Mukker <atulm@lsil.com>
+
+ "James, I've been thinking about this a little more, and you may be on
+ to something here. Let each driver add files as such:"
+
+ - Matt Domsch <Matt_Domsch@dell.com>, 12.15.2004
+ linux-scsi mailing list
+
+
+ "Then, if you simply publish your LD number as an extra parameter of
+ the device, you can look through /sys to find it."
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 01.03.2005
+ linux-scsi mailing list
+
+
+ "I don't see why not ... it's your driver, you can publish whatever
+ extra information you need as scsi_device attributes; that was one of
+ the designs of the extensible attribute system."
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 01.06.2005
+ linux-scsi mailing list
+
+2. Add AMI megaraid support - Brian King <brking@charter.net>
+ PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID3,
+ PCI_VENDOR_ID_AMI, PCI_SUBSYS_ID_PERC3_DC,
+
+3. Make some code static - Adrian Bunk <bunk@stusta.de>
+ Date: Mon, 15 Nov 2004 03:14:57 +0100
+
+ The patch below makes some needlessly global code static.
+ -wait_queue_head_t wait_q;
+ +static wait_queue_head_t wait_q;
+
+ Signed-off-by: Adrian Bunk <bunk@stusta.de>
+
+4. Added NEC ROMB support - NEC MegaRAID PCI Express ROMB controller
+ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_MEGARAID_NEC_ROMB_2E,
+ PCI_SUBSYS_ID_NEC, PCI_SUBSYS_ID_MEGARAID_NEC_ROMB_2E,
+
+5. Fixed Tape drive issue : For any Direct CDB command to physical device
+ including tape, timeout value set by driver was 10 minutes. With this
+ value, most of command will return within timeout. However, for those
+ command like ERASE or FORMAT, it takes more than an hour depends on
+ capacity of the device and the command could be terminated before it
+ completes.
+ To address this issue, the 'timeout' field in the DCDB command will
+ have NO TIMEOUT (i.e., 4) value as its timeout on DCDB command.
+
+
+
+Release Date : Thu Dec 9 19:10:23 EST 2004
+ - Sreenivas Bagalkote <sreenib@lsil.com>
+
+Current Version : 2.20.4.2 (scsi module), 2.20.2.4 (cmm module)
+Older Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
+
+i. Introduced driver ioctl that returns scsi address for a given ld.
+
+ "Why can't the existing sysfs interfaces be used to do this?"
+ - Brian King (brking@us.ibm.com)
+
+ "I've looked into solving this another way, but I cannot see how
+ to get this driver-private mapping of logical drive number-> HCTL
+ without putting code something like this into the driver."
+
+ "...and by providing a mapping a function to userspace, the driver
+ is free to change its mapping algorithm in the future if necessary .."
+ - Matt Domsch (Matt_Domsch@dell.com)
+
+Release Date : Thu Dec 9 19:02:14 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
+
+Current Version : 2.20.4.1 (scsi module), 2.20.2.3 (cmm module)
+Older Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
+
+i. Fix a bug in kioc's dma buffer deallocation
+
+Release Date : Thu Nov 4 18:24:56 EST 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
+
+Current Version : 2.20.4.1 (scsi module), 2.20.2.2 (cmm module)
+Older Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
+
+i. Handle IOCTL cmd timeouts more properly.
+
+ii. pci_dma_sync_{sg,single}_for_cpu was introduced into megaraid_mbox
+ incorrectly (instead of _for_device). Changed to appropriate
+ pci_dma_sync_{sg,single}_for_device.
+
+Release Date : Wed Oct 06 11:15:29 EDT 2004 - Sreenivas Bagalkote <sreenib@lsil.com>
+Current Version : 2.20.4.0 (scsi module), 2.20.2.1 (cmm module)
+Older Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
+
+i. Remove CONFIG_COMPAT around register_ioctl32_conversion
+
+Release Date : Mon Sep 27 22:15:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.4.0 (scsi module), 2.20.2.0 (cmm module)
+Older Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
+
+i. Fix data corruption. Because of a typo in the driver, the IO packets
+ were wrongly shared by the ioctl path. This causes a whole IO command
+ to be replaced by an incoming ioctl command.
+
+Release Date : Tue Aug 24 09:43:35 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.3.1 (scsi module), 2.20.2.0 (cmm module)
+Older Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
+
+i. Function reordering so that inline functions are defined before they
+ are actually used. It is now mandatory for GCC 3.4.1 (current stable)
+
+ Declare some heavy-weight functions to be non-inlined,
+ megaraid_mbox_build_cmd, megaraid_mbox_runpendq,
+ megaraid_mbox_prepare_pthru, megaraid_mbox_prepare_epthru,
+ megaraid_busywait_mbox
+
+ - Andrew Morton <akpm@osdl.org>, 08.19.2004
+ linux-scsi mailing list
+
+ "Something else to clean up after inclusion: every instance of an
+ inline function is actually rendered as a full function call, because
+ the function is always used before it is defined. Atul, please
+ re-arrange the code to eliminate the need for most (all) of the
+ function prototypes at the top of each file, and define (not just
+ declare with a prototype) each inline function before its first use"
+
+ - Matt Domsch <Matt_Domsch@dell.com>, 07.27.2004
+ linux-scsi mailing list
+
+
+ii. Display elapsed time (countdown) while waiting for FW to boot.
+
+iii. Module compilation reorder in Makefile so that unresolved symbols do
+ not occur when driver is compiled non-modular.
+
+ Patrick J. LoPresti <patl@users.sourceforge.net>, 8.22.2004
+ linux-scsi mailing list
+
+
+Release Date : Thu Aug 19 09:58:33 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.3.0 (scsi module), 2.20.2.0 (cmm module)
+Older Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
+
+i. When copying the mailbox packets, copy only first 14 bytes (for 32-bit
+ mailboxes) and only first 22 bytes (for 64-bit mailboxes). This is to
+ avoid getting the stale values for busy bit. We want to set the busy
+ bit just before issuing command to the FW.
+
+ii. In the reset handling, if the reseted command is not owned by the
+ driver, do not (wrongly) print information for the "attached" driver
+ packet.
+
+iii. Have extended wait when issuing command in synchronous mode. This is
+ required for the cases where the option ROM is disabled and there is
+ no BIOS to start the controller. The FW starts to boot after receiving
+ the first command from the driver. The current driver has 1 second
+ timeout for the synchronous commands, which is far less than what is
+ actually required. We now wait up to MBOX_RESET_TIME (180 seconds) for
+ FW boot process.
+
+iv. In megaraid_mbox_product_info, clear the mailbox contents completely
+ before preparing the command for inquiry3. This is to ensure that the
+ FW does not get junk values in the command.
+
+v. Do away with the redundant LSI_CONFIG_COMPAT redefinition for
+ CONFIG_COMPAT. Replace <asm/ioctl32.h> with <linux/ioctl32.h>
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 08.17.2004
+ linux-scsi mailing list
+
+vi. Add support for 64-bit applications. Current drivers assume only
+ 32-bit applications, even on 64-bit platforms. Use the "data" and
+ "buffer" fields of the mimd_t structure, instead of embedded 32-bit
+ addresses in application mailbox and passthru structures.
+
+vii. Move the function declarations for the management module from
+ megaraid_mm.h to megaraid_mm.c
+
+ - Andrew Morton <akpm@osdl.org>, 08.19.2004
+ linux-scsi mailing list
+
+viii. Change default values for MEGARAID_NEWGEN, MEGARAID_MM, and
+ MEGARAID_MAILBOX to 'n' in Kconfig.megaraid
+
+ - Andrew Morton <akpm@osdl.org>, 08.19.2004
+ linux-scsi mailing list
+
+ix. replace udelay with msleep
+
+x. Typos corrected in comments and whitespace adjustments, explicit
+ grouping of expressions.
+
+
+Release Date : Fri Jul 23 15:22:07 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.2.0 (scsi module), 2.20.1.0 (cmm module)
+Older Version : 2.20.1.0 (scsi module), 2.20.0.0 (cmm module)
+
+i. Add PCI ids for Acer ROMB 2E solution
+
+ii. Add PCI ids for I4
+
+iii. Typo corrected for subsys id for megaraid sata 300-4x
+
+iv. Remove yield() while mailbox handshake in synchronous commands
+
+
+ "My other main gripe is things like this:
+
+ + // wait for maximum 1 second for status to post
+ + for (i = 0; i < 40000; i++) {
+ + if (mbox->numstatus != 0xFF) break;
+ + udelay(25); yield();
+ + }
+
+ which litter the driver. Use of yield() in drivers is deprecated."
+
+ - James Bottomley <James.Bottomley@SteelEye.com>, 07.14.2004
+ linux-scsi mailing list
+
+v. Remove redundant __megaraid_busywait_mbox routine
+
+vi. Fix bug in the managment module, which causes a system lockup when the
+ IO module is loaded and then unloaded, followed by executing any
+ management utility. The current version of management module does not
+ handle the adapter unregister properly.
+
+ Specifically, it still keeps a reference to the unregistered
+ controllers. To avoid this, the static array adapters has been
+ replaced by a dynamic list, which gets updated every time an adapter
+ is added or removed.
+
+ Also, during unregistration of the IO module, the resources are
+ now released in the exact reverse order of the allocation time
+ sequence.
+
+
+Release Date : Fri Jun 25 18:58:43 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.1.0
+Older Version : megaraid 2.20.0.1
+
+i. Stale list pointer in adapter causes kernel panic when module
+ megaraid_mbox is unloaded
+
+
+Release Date : Thu Jun 24 20:37:11 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.0.1
+Older Version : megaraid 2.20.0.00
+
+i. Modules are not 'y' by default, but depend on current definition of
+ SCSI & PCI.
+
+ii. Redundant structure mraid_driver_t removed.
+
+iii. Miscellaneous indentation and goto/label fixes.
+ - Christoph Hellwig <hch@infradead.org>, 06.24.2004 linux-scsi
+
+iv. scsi_host_put(), do just before completing HBA shutdown.
+
+
+
+Release Date : Mon Jun 21 19:53:54 EDT 2004 - Atul Mukker <atulm@lsil.com>
+Current Version : 2.20.0.0
+Older Version : megaraid 2.20.0.rc2 and 2.00.3
+
+i. Independent module to interact with userland applications and
+ multiplex command to low level RAID module(s).
+
+ "Shared code in a third module, a "library module", is an acceptable
+ solution. modprobe automatically loads dependent modules, so users
+ running "modprobe driver1" or "modprobe driver2" would automatically
+ load the shared library module."
+
+ - Jeff Garzik <jgarzik@pobox.com> 02.25.2004 LKML
+
+ "As Jeff hinted, if your userspace<->driver API is consistent between
+ your new MPT-based RAID controllers and your existing megaraid driver,
+ then perhaps you need a single small helper module (lsiioctl or some
+ better name), loaded by both mptraid and megaraid automatically, which
+ handles registering the /dev/megaraid node dynamically. In this case,
+ both mptraid and megaraid would register with lsiioctl for each
+ adapter discovered, and lsiioctl would essentially be a switch,
+ redirecting userspace tool ioctls to the appropriate driver."
+
+ - Matt Domsch <Matt_Domsch@dell.com> 02.25.2004 LKML
+
+ii. Remove C99 initializations from pci_device id.
+
+ "pci_id_table_g would be much more readable when not using C99
+ initializers.
+ PCI table doesn't change, there's lots of users that prefer the more
+ readable variant. And it's really far less and much easier to grok
+ lines without C99 initializers."
+
+ - Christoph Hellwig <hch@infradead.org>, 05.28.2004 linux-scsi
+
+iii. Many fixes as suggested by Christoph Hellwig <hch@infradead.org> on
+ linux-scsi, 05.28.2004
+
+iv. We now support up to 32 parallel ioctl commands instead of current 1.
+ There is a conscious effort to let memory allocation not fail for ioctl
+ commands.
+
+v. Do away with internal memory management. Use pci_pool_(create|alloc)
+ instead.
+
+vi. Kill tasklet when unloading the driver.
+
+vii. Do not use "host_lock', driver has fine-grain locks now to protect all
+ data structures.
+
+viii. Optimize the build scatter-gather list routine. The callers already
+ know the data transfer address and length.
+
+ix. Better implementation of error handling and recovery. Driver now
+ performs extended errors recovery for instances like scsi cable pull.
+
+x. Disassociate the management commands with an overlaid scsi command.
+ Driver now treats the management packets as special packets and has a
+ dedicated callback routine.
git://git.onelab.eu / linux-2.6.git / blobdiff